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Ubuntu 16.04. Synaptics 触摸板功能停止工作

tag-icon • tag-icon 16.04 touchpad synaptics
Ubuntu 16.04. Synaptics 触摸板功能停止工作 
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.1 LTS
Release:        16.04
Codename:       xenial

触摸板功能（双指滚动等）突然停止工作，可能是在上次更新后。触摸板选项卡丢失系统 -> 偏好设置 -> 鼠标。我的触摸板就像鼠标一样。

synclient输出：

Couldn't find synaptics properties. No synaptics driver loaded?

xinput list输出：

⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer            id=4    [slave  pointer  (2)]
⎜   ↳ PS/2 Synaptics TouchPad               id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                     id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard           id=5    [slave  keyboard (3)]
    ↳ Power Button                          id=6    [slave  keyboard (3)]
...

xinput list-props 12输出：

Device 'PS/2 Synaptics TouchPad':
    Device Enabled (142):   1
    Coordinate Transformation Matrix (144): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    Device Accel Profile (273): 0
    Device Accel Constant Deceleration (274):   1.000000
    Device Accel Adaptive Deceleration (275):   1.000000
    Device Accel Velocity Scaling (276):    10.000000
    Device Product ID (263):    2, 1
    Device Node (264):  "/dev/input/event6"
    Evdev Axis Inversion (277): 0, 0
    Evdev Axes Swap (279):  0
    Axis Labels (280):  "Rel X" (152), "Rel Y" (153)
    Button Labels (281):    "Button Left" (145), "Button Middle" (146), "Button Right" (147), "Button Wheel Up" (148), "Button Wheel Down" (149)
    Evdev Scrolling Distance (282): 0, 0, 0
    Evdev Middle Button Emulation (283):    0
    Evdev Middle Button Timeout (284):  50
    Evdev Third Button Emulation (285): 0
    Evdev Third Button Emulation Timeout (286): 1000
    Evdev Third Button Emulation Button (287):  3
    Evdev Third Button Emulation Threshold (288):   20
    Evdev Wheel Emulation (289):    0
    Evdev Wheel Emulation Axes (290):   0, 0, 4, 5
    Evdev Wheel Emulation Inertia (291):    10
    Evdev Wheel Emulation Timeout (292):    200
    Evdev Wheel Emulation Button (293): 4
    Evdev Drag Lock Buttons (294):  0

已经尝试重新安装xserver-xorg并xserver-xorg-input-synaptics

有任何想法吗？

答案1

升级到 16.04 后，我遇到了同样的问题。我做的第一件事是在 /etc/X11 中查找 synaptics 配置文件，但我再也看不到它了。所以我这样做了：

sudo mkdir /etc/X11/xorg.conf.d
cd /etc/X11/xorg.conf.d
sudo cp /usr/share/X11/xorg.conf.d/50-synaptics.conf  .

这实际上并没有什么帮助。所以这一步可能完全没有必要。

之后，我发现有东西禁用了我的触摸板。为了修复，我做了以下操作：

synclient TouchPadOff=0

重新启动后，这似乎不再是问题了。

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